Severe Thunderstorm Warning Issued for Cascade, Chouteau, Lewis and Clark, Pondera, Teton Counties MT
This alert is no longer in effect.
NOAA issued it on September 2, 2026, 2 weeks ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Great Falls MT has issued a Severe Thunderstorm Warning for five Montana counties until 5:00 PM MDT on September 2, 2026, with 70 mph wind gusts observed.
30 seconds on this weather notice
- Record type
- Severe Thunderstorm Warning
- Affected area
- Central and North Central Montana
- Issued
- September 2, 2026
- Issuing authority
- NWS Great Falls MT
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 2 weeks ago; use the issuing agency's live warning service for current conditions in Central and North Central Montana.
Alert Details
The National Weather Service in Great Falls has issued a Severe Thunderstorm Warning. The alert was sent at 3:59 PM MDT on September 2, 2026, and is effective immediately until 5:00 PM MDT the same day. The event type is Severe Thunderstorm Warning with severity Severe, urgency Immediate, and certainty Observed.
Affected Areas
The warning covers Cascade County, Chouteau County, Lewis and Clark County, Pondera County, and Teton County in Montana. Locations impacted include Great Falls, Conrad, Choteau, Cascade, Fairfield, Dutton, Brady, Black Eagle, Fort Shaw, Power, Augusta, Dupuyer, Pishkun Reservoir, Eden, Stockett, First Peoples Buffalo Jump State Park, Ulm, Simms, Ledger, and Malmstrom Afb.
What You Should Do
For your protection move to an interior room on the lowest floor of a building.
Expected Conditions
At 3:58 PM MDT, severe thunderstorms were located along a line extending from 15 miles north of Choteau to 15 miles south of Cascade, moving northeast at 30 mph. Hazards include 70 mph wind gusts. Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. Blowing dust will reduce visibility and create hazardous driving conditions. Max hail size up to 0.75 inches.
Timeline
The alert is effective from 3:59 PM MDT on September 2, 2026, and ends at 5:00 PM MDT on September 2, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two cross-category peer sets, both computed from Areazine's own archive: notices with a similar body length, and notices near the same severity and agency date. These are drawn from other categories, not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,376 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 2, 2026.
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